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Ghezavati A, Liang CA, Mais D, Nazarullah A. Indolent T-lymphoblastic proliferation involving hepatocellular carcinoma-presentation in novel settings and comprehensive review of literature. J Hematop 2023; 16:167-175. [PMID: 38175402 DOI: 10.1007/s12308-023-00554-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/06/2023] [Indexed: 01/05/2024] Open
Abstract
Indolent T-lymphoblastic proliferation (iT-LBP) is a rare, non-clonal, extrathymic lymphoid proliferation with an immature T cell phenotype, indolent clinical course, and excellent prognosis. Although their pathogenesis is unclear, they are reported to be associated with Castleman disease, follicular dendritic cell tumors/sarcomas, angioimmunoblastic T cell lymphoma, hepatocellular carcinoma (HCC), myasthenia gravis, and acinic cell carcinoma. There are around 51 reported cases of iT-LBP in the literature. Recognition and accurate diagnosis of this entity is critical as it shares morphologic and immunophenotypic features with an aggressive malignancy-acute T cell leukemia/lymphoma (T-ALL). IT-LBP in HCC post-liver transplant and in metastatic sites has not been reported in the literature. Two case reports of patients presenting with recurrent and metastatic HCC in post-liver transplant settings are described. A 50-year-old man with an end-stage liver disease with HCC underwent liver transplant. A year later, he developed pulmonary metastasis with associated iT-LBP. A 69-year-old man underwent liver transplant for end-stage liver disease and HCC. Eighteen months later, he developed recurrent HCC in the transplanted liver and omental metastasis; both sites showed HCC with iT-LBP. iT-LBP in both patients expressed TdT, CD3, and CD4 and lacked CD34 and clonal T cell receptor gene rearrangements. On retrospective review, the pre-transplant HCC specimens lacked iT-LBP. We present two cases of iT-LBP associated with HCC in novel settings-in post-liver transplant patients and in recurrent/metastatic sites of HCC. In addition, a comprehensive literature review of clinical, histological, and immunophenotypic characteristics of reported cases of iT-LBP is presented.
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Affiliation(s)
- Alireza Ghezavati
- Department of Pathology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX, 78229, USA
| | - Christine A Liang
- Department of Pathology, South Texas Pathology Associates, San Antonio, TX, USA
| | - Daniel Mais
- Department of Pathology, University of Louisville Health, Kentucky, USA
| | - Alia Nazarullah
- Department of Pathology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr, San Antonio, TX, 78229, USA.
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2
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Saglam A, Singh K, Gollapudi S, Kumar J, Brar N, Butzmann A, Warnke R, Ohgami RS. Indolent T-lymphoblastic proliferation: A systematic review of the literature analyzing the epidemiologic, clinical, and pathologic features of 45 cases. Int J Lab Hematol 2022; 44:700-711. [PMID: 35577551 DOI: 10.1111/ijlh.13873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/25/2022] [Indexed: 11/26/2022]
Abstract
An indolent T-lymphoblastic proliferation (iT-LBP) is a rare benign disorder characterized by an abnormal expansion of immature T-cells, which morphologically can mimic malignancy. Since the first case was described in 1999, dozens more have been reported in the literature. However, the epidemiologic, clinical, pathologic, and biologic features of this disease have not been well described. Here, we retrospectively reviewed all known cases reported in the literature to better understand this entity. A PubMed search up to January 2022 highlighted 25 papers describing cases/case series of iT-LBP, one of which was a case presentation in a slide workshop. Except for 9 of the cases in one of the papers, where it was evident that the number of CD3+/TdT+ cells were too few to conform with a diagnosis of iT-LBP, all papers and all the cases reported were included in the study amounting to a total of 45 cases. Clinicopathologic characteristics were analyzed using descriptive statistics and frequencies. Our analysis highlighted the previously known association with Castleman disease and Castleman-like features and underlined its association with dendritic cell proliferations in general, as well as uncovering high frequency of concurrence with hepatocellular carcinoma and autoimmune diseases, most notably myasthenia gravis, paraneoplastic pemphigus and paraneoplastic autoimmune multiorgan syndrome. Furthermore, the co-expression of CD4 and CD8 and high prevalence of extranodal disease and recurrences were other less well described features that were revealed.
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Affiliation(s)
- Arzu Saglam
- Department of Pathology, Hacettepe University, Ankara, Turkey
| | - Kunwar Singh
- Department of Pathology, University of California San Francisco, San Francisco, California, USA
| | - Sumanth Gollapudi
- Department of Pathology, University of California San Francisco, San Francisco, California, USA
| | - Jyoti Kumar
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Nivaz Brar
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Alexandra Butzmann
- Department of Pathology, University of California San Francisco, San Francisco, California, USA
| | - Roger Warnke
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Robert S Ohgami
- Department of Pathology, University of California San Francisco, San Francisco, California, USA
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3
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After Experimental Trypanosoma cruzi Infection, Dying Hepatic CD3 +TCRαβ +B220 + T Lymphocytes Are Rescued from Death by Peripheral T Cells and Become Activated. Pathogens 2020; 9:pathogens9090717. [PMID: 32878101 PMCID: PMC7559066 DOI: 10.3390/pathogens9090717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/25/2020] [Accepted: 08/27/2020] [Indexed: 01/09/2023] Open
Abstract
The unusual phenotype of CD3+ T lymphocyte expressing B220, a marker originally attributed to B lymphocytes, was first observed in the liver of Fas/Fas-L-deficient mice as a marker of apoptotic T lymphocytes. However, other CD3+B220+ T lymphocyte populations were later described in the periphery as functional cytotoxic or regulatory cells, for example. Then, in this work, we studied whether hepatic CD3+B220+ T lymphocytes could play a role in experimental Trypanosoma cruzi infection. In control and infected mice, we observed two subpopulations that could be discerned based on CD117 expression, which were conventional apoptotic CD3+B220+(CD117-) and thymus-independent CD3+B220+CD117+ T lymphocytes. Regardless of CD117 expression, most B220+ T lymphocytes were 7AAD+, confirming this molecule as a marker of dying T cells. However, after infection, we found that around 15% of the CD3+B220+CD117+ hepatic population became B220 and 7AAD negative, turned into CD90.2+, and upregulated the expression of CD44, CD49d, and CD11a, a phenotype consistent with activated T lymphocytes. Moreover, we observed that the hepatic CD3+B220+CD117+ population was rescued from death by previously activated peripheral T lymphocytes. Our results extend the comprehension of the hepatic CD3+B220+ T lymphocyte subpopulations and illustrate the complex interactions that occur in the liver.
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4
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Atkinson SP. A preview of selected articles. Stem Cells Transl Med 2020. [PMCID: PMC7214639 DOI: 10.1002/sctm.20-0173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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5
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Liu Y, Ding L, Zhang B, Deng Z, Han Y, Wang S, Yang S, Fan Z, Zhang J, Yan H, Han D, He L, Yue W, Wang H, Li Y, Pei X. Thrombopoietin enhances hematopoietic stem and progenitor cell homing by impeding matrix metalloproteinase 9 expression. Stem Cells Transl Med 2020; 9:661-673. [PMID: 32125099 PMCID: PMC7214666 DOI: 10.1002/sctm.19-0220] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 12/11/2019] [Accepted: 01/02/2020] [Indexed: 12/15/2022] Open
Abstract
We reported a novel function of recombinant human thrombopoietin (TPO) in increasing hematopoietic stem and progenitor cell (HSPC) homing to the bone marrow (BM). Single doses of TPO treatment to the recipients immediately after BM transplantation showed significantly improved homing of HSPCs to the BM, which subsequently resulted in enhanced short‐ and long‐term engraftment of HSPCs in mice. We found that TPO could downregulate the expression and secretion of matrix metalloproteinase 9 in BM cells. As a result, SDF‐1α level was increased in the BM niche. Blocking the interaction of SDF‐1α and CXCR4 on HSPCs by using AMD3100 could significantly reverse the TPO‐enhanced HSPC homing effect. More importantly, a single dose of TPO remarkably promoted human HSPC homing and subsequent engraftment to the BM of nonobese diabetic/severe combined immunodeficiency mice. We then performed a clinical trial to evaluate the effect of TPO treatment in patients receiving haploidentical BM and mobilized peripheral blood transplantation. Surprisingly, single doses of TPO treatment to patients followed by hematopoietic stem cell transplantation significantly improved platelet engraftment in the cohort of patients with severe aplastic anemia (SAA). The mean volume of platelet and red blood cell transfusion was remarkably reduced in the cohort of patients with SAA or hematological malignancies receiving TPO treatment. Thus, our data provide a simple, feasible, and efficient approach to improve clinical outcomes in patients with allogenic hematopoietic stem cell transplantation. The clinical trial was registered in the Chinese Clinical Trial Registry website (http://www.chictr.org.cn) as ChiCTR‐OIN‐1701083.
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Affiliation(s)
- Yiming Liu
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing, People's Republic of China.,South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
| | - Li Ding
- Department of Hematology, Medical Center of Air Forces, PLA, Beijing, People's Republic of China
| | - Bowen Zhang
- South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China.,Experimental Hematology and Biochemistry Lab, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Ziliang Deng
- South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
| | - Yi Han
- South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
| | - Sihan Wang
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing, People's Republic of China.,South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
| | - Shu Yang
- South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
| | - Zeng Fan
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing, People's Republic of China.,South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
| | - Jing Zhang
- South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China.,Experimental Hematology and Biochemistry Lab, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Hongmin Yan
- Department of Hematology, Medical Center of Air Forces, PLA, Beijing, People's Republic of China
| | - Dongmei Han
- Department of Hematology, Medical Center of Air Forces, PLA, Beijing, People's Republic of China
| | - Lijuan He
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing, People's Republic of China.,South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
| | - Wen Yue
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing, People's Republic of China.,South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
| | - Hengxiang Wang
- Department of Hematology, Medical Center of Air Forces, PLA, Beijing, People's Republic of China
| | - Yanhua Li
- South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China.,Experimental Hematology and Biochemistry Lab, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | - Xuetao Pei
- Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, Beijing, People's Republic of China.,South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
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Gong Z, Shang B, Chu Y, Chen X, Li Q, Liu K, Chen Y, Huang Y, Han Y, Shang Q, Zheng Z, Song L, Li Y, Liu R, Xu C, Zhang X, Liu B, Wang L, Shao C, Wang Y, Shi Y. Fibrotic liver microenvironment promotes Dll4 and SDF-1-dependent T-cell lineage development. Cell Death Dis 2019; 10:440. [PMID: 31165736 PMCID: PMC6549170 DOI: 10.1038/s41419-019-1630-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/22/2019] [Accepted: 04/29/2019] [Indexed: 11/09/2022]
Abstract
The reconstitution of the T-cell repertoire and quantity is a major challenge in the clinical management of HIV infection/AIDS, cancer, and aging-associated diseases. We previously showed that autologous bone marrow transfusion (BMT) via the hepatic portal vein could effectively restore CD4+ T-cell count in AIDS patients also suffering from decompensated liver cirrhosis. In the current study, we characterized T-cell reconstitution in a mouse model of liver fibrosis induced by CCl4 and found that T-cell reconstitution after BMT via hepatic portal vein was also greatly enhanced. The expression of Dll4 (Delta-like 4), which plays an important role in T-cell progenitor expansion, was elevated in hepatocytes of fibrotic livers when compared to normal livers. This upregulation of Dll4 expression was found to be induced by TNFα in an NFκB-dependent manner. Liver fibroblasts transfected with Dll4 (LF-Dll4) also gained the capacity to promote T-cell lineage development from hematopoietic stem cells (HSCs), resulting in the generation of DN2 (CD4 and CD8 DN 2) and DN3 T-cell progenitors in vitro, which underwent a normal maturation program when adoptively transferred into Rag-2 deficient hosts. We also demonstrated a pivotal role of SDF-1 produced by primary liver fibroblasts (primary LF) in T-lineage differentiation from HSCs. These results suggest that Dll4 and SDF-1 in fibrotic liver microenvironment could promote extrathymic T-cell lineage development. These results expand our knowledge of T-cell development and reconstitution under pathological conditions.
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Affiliation(s)
- Zheng Gong
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Bingxue Shang
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Yunpeng Chu
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Xiaodong Chen
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Qing Li
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Keli Liu
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yongjing Chen
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Yin Huang
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yanyan Han
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Qianwen Shang
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Zhiyuan Zheng
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Lin Song
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Yanan Li
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Rui Liu
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Chenchang Xu
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China
| | - Xiaoren Zhang
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Baochi Liu
- Department of Surgery, Shanghai Public Health Clinical Center Fudan University, Shanghai, China
| | - Luowei Wang
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Changshun Shao
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China.
| | - Ying Wang
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China.
| | - Yufang Shi
- The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Key Laboratory of Stem Cells and Medical Biomaterials of Jiangsu Province, Soochow University Medical College, Suzhou, China.
- Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China.
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Filip S, Mokrý J, Vávrová J, Cížková D, Sinkorová Z, Mičuda S, Bláha M, English D. Splenectomy influences homing of transplanted stem cells in bone marrow-ablated mice. Stem Cells Dev 2011; 21:702-9. [PMID: 21651380 DOI: 10.1089/scd.2011.0068] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Cell mobilization, a process that influences circulation, margination, and finally, homing play key roles in the regeneration processes mediated by stem cells. Recent studies as well as prior studies from our group indicate an important role of the spleen in hematopoietic reconstitution, but to date the role of the spleen in hematopoietic reconstitution has been unclear and it has not been precisely documented in ablated animals. Therefore, we undertook the present study to define more closely the role of the spleen in hematopoietic reconstitution in lethally irradiated mice. After transplantation of irradiated mice with lacZ+ -marked lin- / CD117+ bone marrow cells, we compared splenectomized mice (T(S), splenectomy performed prior to irradiation) to nonsplenectomized, irradiated mice (T(N)) as well as to normal (unirradiated) mice. Impaired hematopoietic reconstitution was observed in T(S) mice. Splenectomy markedly altered the distribution of hematopoietic stem cells, as demonstrated by fluorescence-activated cell sorting analysis of endogenous CD117+ cells in the thymus and bone marrow of recipients. Cell engraftment was demonstrated by histochemical and polymerase chain reaction analyses of recipient tissues. These experiments demonstrated that in T(S) animals, transplanted hematopoietic stem cells mobilized to extravascular tissues, particularly the gastrointestinal tract. The number of donor cells in recipient tissues continued to increase for 30 days after transplantation with the highest numbers observed in the T(S) group. DNA marking analysis led to the conclusion that engrafted cells were not only integrated into recipient tissues but were also capable of performing complex cellular processes, including proliferation and repair. Our results are consistent with the novel possibility that cellular repair markedly affects stem cell regenerative functions and that repair is markedly influenced by the integrity and presence of organs not directly involved in specific tissue regeneration processes, particularly the spleen.
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Affiliation(s)
- Stanislav Filip
- Department of Oncology and Radiotherapy, Faculty of Medicine and Teaching Hospital, Charles University in Prague, Hradec Králové, Czech Republic.
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Fan RS, Yu DJ, Sun DR. Numbers and activities of CD56 + T cells and natural killer cells in cirrhotic livers with hepatitis C. Shijie Huaren Xiaohua Zazhi 2006; 14:1836-1838. [DOI: 10.11569/wcjd.v14.i18.1836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To study the numbers and anti-tumor activities of CD56+ T cells and natural killer (NK) cells in cirrhotic liver with hepatitis C (HC).
METHODS: Hepatic mononuclear cells (MNC) were isolated from liver specimens obtained from the patients (n = 16) with HC-induced cirrhosis by liver biopsy. In addition, the numbers of CD56+ T cells and natural killer cells were determined by flow cytometry. Liver MNC and peripheral blood mononuclear cells (PBMC) were co-cultured with the interleukin-2 (IL-2), respectively, and the production of interferon-g (IFN-g) and the antitumor activity were measured.
RESULTS: The percentages of CD56+ T cells among hepatic MNC in health individuals, HC and HC-induced cirrhosis patients were 20.4% ± 6.2%, 11.2% ± 3.1% and 5.0% ± 1.6%, respectively; the proportions of NK cells among liver MNC in the three groups were 31.1% ± 9.7%, 31.6% ± 8.3% and 18.3% ± 5.4%, respectively; the productions of IFN-g in the three groups were 7.4 ± 2.4, 3.2 ± 1.8 and 1.9 ± 0.5 mg/L, respectively; the anti-tumor activities hepatic MNC in the three groups were 61.1% ± 17.1%, 59.2% ± 14.6%, and 26.7% ± 8.5%, respectively. For the above four groups of parameters, the changes in HC-induced cirrhosis patients was the most significant (P < 0.05).
CONCLUSION: The numbers and anti-tumor activities of CD56+T cells and NK cells are decreased in cirrhotic livers with HC.
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